Initial Bipolar Zero Error (Bit 1 “on” and all other bits “off”)
is the deviation from 0V out and is factory-trimmed to
typically ±30mV at +25°C.

so we take one DAC with worst case +30mV at midscale, and one with -30mV at midscale. This amount of crossover distortion has the big advantage we can go class c in the power amp without doing significant more degrading the THD.

Originally posted by Bernhard 4 different data lines coming from a Technics >40pin smd ic.

Outperforms 1541 S1, 6 dB better distortion & noise.

Very typical of you, Bernhard.
Don't take me wrong but LISTEN to the TDA1541 S1.
Whatever it measures, the TDA1541 (in all its versions) gives the best sound I've heard coming from a CD IMHO.
Put a good clock on both players, a good analog stage and compare.

Just working through this. Minimum FSV for the PCM56 is +5 volts. Say you level shift one of them from -5 to 0 and the other sits from 0 to 5. With a bipolar output stage to recombine the outputs, you could get effectively 17-bit @ +10 volt resolution. It's not 32 bits resolution. MSB voltage value = 5 volts + 16 bits resolution left to resolve 5 volts... right back where you started.
I don't think you would gain any higher resolution from this topology unless you fix the output voltage requirements for each scenario.
In addition, unless you're creating an A/D -> D/A processing pair, you'll have to find a way to drive a 32-bit signal digital signal.
--
Danny

Bernhard, 1541 is technically enormously obsolete part and if you are in search for good distortion specs do not waste your time with it. Almost any recent unit is better. Did you know, there are even chips like this (see below)? And you can have that for the price of ‘41/S1.

Originally posted by Pedja Bernhard, 1541 is technically enormously obsolete part and if you are in search for good distortion specs do not waste your time with it. Almost any recent unit is better. Did you know, there are even chips like this (see below)? And you can have that for the price of ‘41/S1.